Improvement in weavers  spools



H..H`. BRYANT.

y Weavers Spouls. No.l5l,200. Patented May2,1874.

UNITED STATES PATENT cOFFICE.

HEZEKIAH H. BRYANT, OF BOSTON, MASSACHUSETTS. Y

IMPROVEMENT IN WEAVERS SPVOOLS.

Specification forming part of Letters Patent No. 151,200, dated May 26, 1874; application led April 14, 1874.

To all whom it may concern.:

Be it known that I, HEZEKIAH H. BRYANT, of Boston, county of Suffolk and State of Massachusetts, have invented certain Improvementsin the Construction of Weavers Spools, of which the following is a specification:

In the accompanying drawing, forming part of this specification, Figurel is a longitudinal section of my spool, and Fig. 2 is an end elevation of the head of the spool and the plug bolt securing it to the barrel.

In said drawing, B denotes the barrel, A the chamber of the barrel, O a plug-bolt which secures the head to the barrel, and D the head of the spool. A practical method for making my spool may be described as follows: Take a disk otinetal of the proper size to make a spool-head of the required diameter, punch a circular hole at its center, of the same diam.

eter as that of the chamber A, and then proceed, by means of a suitable screw or drop press, to turn the flange a around the outer edge of the disk, as shown in Fig. l, at the same time forming the radial corrugations c on the body of the disk, as shown in Fig. 2, said corrugations c terminating somewhat inside of the periphery of the head D after the iiange a is turned on it, so as to leave said periphery true and ush at all points with the spaces intervening' between the corrugations c, for the purpose of preventing the thread or yarn Wound upon the spool from being caught in said corrugations and broken, as would be the case if said corrugations protruded through said periphery when the spool is used on speed` ers, or mule, or spinning frames. The ange a and corrugations c, substantially as shown and specified, serve the several purposes of stiifening the metal, givinga dat or rounded edge to the disk, and. providing one side of said disk with a straight and true surface or surfaces against Which the thread can uniformly pack as it is Wound upon the spool. The fact that the thread is carried to and fro across the spool by machinery just so far each time explains the necessity of making the corrugations c radial instead of concentric; otherwise it would be impossible to properly pack the thread upon the spool. I do not wish to confine myself to using the flange a.

The barrel of my spool is turned in the ordinary manner from Wood, and of any required diameter or size of chamber. lhe plug-bolt C has its tongue turned to the same diameter' as that of the chamber Aprovided for the barrel B. This tongue, properly pie-food to l'eceive a spindle or skewer, is made about threequarters of an inch in length, and is provided with a head (shown at d in Fig. 1). of a diameter about the same as that of the barrel B. The disk D, barrel B, and plug-bolt O having been made substantially as shown and specifled, they are joined together as a spool by applyiu g glue to the tongue of the plugbolt, and, passing it through the orilice provided at the center of the disk, it is forced into the chamber of the barrel.

It is obvious that the plug-bolt C is not conlined in its use to the spool of my invention, it being equally serviceable in spools of various constructions.

Having described my invention, What I claim is As a new article of manufacture, a spool or bobbin, provided with metal corrugated lian ged heads, held in position by plug-bolts, all substantially as shown and specified.

H. H. BRYANT.

Witnesses E. A. COPELAND, H. J. GILBERT. 

